CN205515785U - Integration tee bend transfusion system - Google Patents

Abstract

The utility model provides an integrated three-way infusion set, relates to the technical field of medical consumables, and aims to solve the problems in the prior art that air is easy to enter into the infusion set, and there are too many connectors on the connecting pipe and easy to fall off. The integrated three-way infusion set includes: a main pipe and a connecting pipe. The main pipe includes a first pipe and a bottle stopper piercer connected through the first pipe, a drip pot, a flow rate regulator and a main pipe tee. The connecting pipe includes a second pipe and a pipe connected through the first pipe. Three-way valve and exhaust device connected by two conduits, the connecting pipe is connected to one end of the main pipe through the three-way valve, the cork piercer is located at the other end of the main pipe, the three-way valve is located at one end of the connecting pipe, and the exhaust device is located on the connecting pipe And close to the drug outlet end of the three-way valve, the other end of the connecting pipe is provided with an indwelling needle connector for connecting the indwelling needle, and the three-way valve, the exhaust device and the second conduit are of an integrated structure. The integrated three-way infusion set provided by the utility model is used in the infusion process, which reduces the probability of air entering the connecting pipe.

Description

Integrated three-way infusion set

technical field

The utility model relates to the technical field of medical consumables, in particular to an integrated three-way infusion set.

Background technique

The infusion set is a common disposable medical consumable that is mainly used for intravenous infusion after aseptic treatment to establish a channel between the vein and the liquid medicine. The infusion set is generally composed of a venous needle, a protective cap, an infusion hose, a liquid medicine filter, a flow rate regulator, a drip pot, a cork puncturer, and an air intake pipe air filter connection.

At present, in the operation process, the infusion set used by doctors to establish intravenous access for patients is composed of ordinary precision infusion sets plus one or more three-way valves and a corresponding number of three-way extension tubes.

If spliced infusion sets are used during the operation, then as the type of operation increases, more three-way valves will be required, so the number of connectors will also increase, which will increase the workload of nurses and improve the connection efficiency. The probability that the tube will fall off at the connector; at the same time, the increase in the number of connectors and the improper position of the exhaust device will increase the probability of air entering the infusion tube; too many connectors will cause more pain in the upper arm of the patient after surgery. Indentation, there is a risk of pressure sores in patients; in addition, patients need to use special indwelling needles for infusion during the operation, so the needles with the original infusion set cannot be used and are generally discarded, which will not only waste medical resources, but also Increase medical waste.

Utility model content

The purpose of the utility model is to provide an integrated three-way infusion set to solve the technical problems in the prior art that air is easy to enter into the infusion set, and there are many connectors on the connecting pipe and easy to fall off.

The integrated three-way infusion device provided by the utility model includes: a main pipe and a connecting pipe, and the main pipe includes a first pipe and a cork puncturer connected through the first pipe, a drip pot, a flow rate regulator and a main pipe tee , the connecting pipe includes a second conduit and a three-way valve connected through the second conduit and an exhaust device, the connecting pipe is connected with one end of the main pipe through the three-way valve, and the cork piercer Located at the other end of the main pipe, the three-way valve is located at one end of the connecting pipe, the exhaust device is located on the connecting pipe and close to the medicine outlet of the three-way valve, the other end of the connecting pipe One end is provided with an indwelling needle connector for connecting an indwelling needle, and the three-way valve, the exhaust device and the second conduit are of an integrated structure.

Preferably, the number of the three-way valves is one, two or more, and the two or more three-way valves are of an integrated structure.

Preferably, the length of the connecting pipe from the exhaust device to the connecting head is 45cm-120cm.

Preferably, one end of the main pipe connected to the connecting pipe is provided with a main pipe screw joint, and the drug inlet end of the three-way valve is provided with a valve screw joint matching the main pipe screw joint.

Preferably, the main pipe is also provided with a main pipe clamp for controlling the on-off state of the first conduit, and the main pipe clamp is located between the medicine outlet end of the main pipe tee and the medicine inlet end of the three-way valve. between.

Preferably, the connecting pipe is also provided with a connecting pipe clamp for controlling the on-off state of the second conduit, and the connecting pipe clamp is located between the three-way valve and the exhaust device.

Preferably, the connecting pipe is further provided with a connecting pipe tee, and the connecting pipe tee is located between the three-way valve and the exhaust device.

Preferably, an air inlet pipe is also included, a cavity is provided inside the cork piercer, and the air inlet pipe communicates with the cavity of the bottle cork piercer.

Preferably, the air inlet of the air inlet pipe is provided with a first filter membrane.

Preferably, a second filter membrane is provided in the exhaust device, and the second filter membrane is located between the drug inlet end and the drug outlet end of the exhaust device.

In the integrated three-way infusion set provided by the utility model, one end of the connecting pipe is connected to the main pipe through the three-way valve, and the other end is connected to the special indwelling needle through the indwelling needle connector. During use, the cork piercer is inserted into the medicine bottle. Under the action of atmospheric pressure, the liquid in the medicine bottle flows into the drip pot along the main pipe. When the pressure of the water column in the drip pot is greater than the patient's venous pressure, the liquid in the medicine bottle The liquid will enter the patient's vein along the main pipe, connecting tube and special indwelling needle.

In the integrated three-way infusion set provided by the utility model, the exhaust device is arranged on the connecting pipe and close to the medicine discharge end of the three-way valve, and the three-way valve, the exhaust device and the second conduit are designed as an integrated structure, Integral molding in the manufacturing process. Compared with the infusion set in the prior art, in the integrated three-way infusion set provided by the utility model, the three-way valve, the exhaust device and the second conduit are designed as an integrated structure, which does not need to be connected again, thus reducing the number of connections. The number of connections between the three-way valve and the exhaust device on the pipe reduces the number of connecting heads on the connecting pipe, thereby reducing the workload of the nurse and the probability of the connecting pipe falling off at the connecting head; the exhaust device is set on the connecting pipe and close to the medicine outlet of the three-way valve, and finally exhaust the medicine liquid passing through each connector, which can reduce the probability of air entering the patient's body; in addition, the integrated three-way infusion set provided by the utility model is designed without needles , and the drug outlet end of the connecting tube is provided with an indwelling needle connector for connecting the indwelling needle. The needleless design reduces the waste of medical resources and medical waste.

Description of drawings

In order to more clearly illustrate the specific implementation of the utility model or the technical solutions in the prior art, the accompanying drawings that need to be used in the description of the specific implementation or the prior art will be briefly introduced below. Obviously, the following descriptions The accompanying drawings are some implementations of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without any creative work.

Fig. 1 is the schematic structural view of the main pipe in the integrated three-way infusion set provided by the embodiment of the present invention;

Fig. 2 is a schematic structural view of the connecting pipe in the integrated three-way infusion set provided by the embodiment of the present invention;

Fig. 3 is a schematic structural view of the main pipe clamp in the integrated three-way infusion set provided by the embodiment of the present invention.

Reference signs:

1-cork piercer protective cap; 2-cork piercer; 3-first catheter;

4-Drip pot; 5-Flow rate regulator; 6-Director tee;

7-head clamp; 71-the first hook; 72-the first splint;

73-the first clamp; 74-the second clamp; 8-screw joint;

9-screw joint protective cap; 10-intake pipe; 11-three-way valve protective cap;

12-three-way valve; 13-second conduit; 14-connecting pipe tee;

15-connecting tube clamp; 16-exhaust device; 17-indwelling needle connector;

18-Connector protective cap.

detailed description

The technical solutions of the utility model will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are part of the embodiments of the utility model, but not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" The orientation or positional relationship indicated by etc. is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, use a specific The azimuth structure and operation, therefore can not be construed as the limitation of the present utility model. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and should not be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless otherwise clearly stipulated and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a flexible connection. Detachable connection, or integral connection; it can be mechanical connection or electrical connection; it can be direct connection or indirect connection through an intermediary, and it can be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present utility model in specific situations.

Fig. 1 is the schematic structural view of the main pipe in the integrated three-way infusion set provided by the embodiment of the present utility model, and Fig. 2 is the structural schematic view of the connecting pipe in the integrated three-way infusion set provided by the embodiment of the present utility model; Fig. 1 and Fig. As shown in 2, the integrated three-way infusion set provided by the embodiment of the present utility model includes: a main pipe and a connecting pipe, and the main pipe includes a first conduit 3 connected via the first conduit 3 to a bottle stopper puncturer 2, a drip pot 4, and a flow rate regulator 5 and the main pipe tee 6, the connecting pipe includes a three-way valve 12 and an exhaust device 16 connected by the second conduit 13 through the second conduit 13, the connecting pipe is connected with one end of the main pipe through the three-way valve 12, and the cork piercer 2 is located at At the other end of the main pipe, the three-way valve 12 is located at one end of the connecting pipe, the exhaust device 16 is located on the connecting pipe and is close to the medicine outlet end of the three-way valve, and the other end of the connecting pipe is provided with an indwelling needle connector 17 for connecting an indwelling needle , The three-way valve 12, the exhaust device 16 and the second conduit 13 are of an integrated structure.

In the integrated three-way infusion set provided by the embodiment of the utility model, one end of the connecting tube is connected to the main pipe through the three-way valve 12 , and the other end is connected to the dedicated indwelling needle through the indwelling needle connector 17 . During use, the cork piercer 2 is inserted into the medicine bottle. Under the action of atmospheric pressure, the liquid in the medicine bottle flows into the drip pot 4 along the main pipe. When the pressure of the water column in the drip pot 4 is greater than the patient's venous pressure, The liquid in the medicine bottle will enter the patient's vein along the main pipe, connecting tube and special indwelling needle.

In the integrated three-way infusion set provided by the embodiment of the utility model, the exhaust device 16 is arranged on the connecting pipe and close to the medicine outlet end of the three-way valve 12, and the three-way valve 12, the exhaust device 16 and the second conduit 13 is designed as an integrated structure, which is integrally formed during the manufacturing process. Compared with the infusion set in the prior art, in the integrated three-way infusion set provided by the embodiment of the present invention, the three-way valve 12, the exhaust device 16 and the second conduit 13 are designed as an integrated structure, which does not need to be connected again , thus reducing the connection times of the three-way valve 12 and the exhaust device 16 on the connecting pipe, and reducing the number of connecting heads on the connecting pipe, thereby reducing the workload of the nurse and the probability that the connecting pipe will fall off at the connecting head; The exhaust device 16 is arranged on the connecting pipe and close to the medicine outlet of the three-way valve 12, and finally exhausts the medicine liquid passing through each joint, which can reduce the probability of air entering the patient's body; in addition, the utility model embodiment provides The integrated three-way infusion set is designed without needles, and the drug outlet end of the connecting tube is provided with an indwelling needle connector 17 for connecting indwelling needles. The needle-free design reduces the waste of medical resources and medical waste.

In order to meet the needs of different types of operations, there are multiple three-way valves 12 on the connecting pipe, and the multiple three-way valves 12 are of an integrated structure, and are integrally formed during the manufacturing process. The integrated three-way valve 12 is provided with a drug inlet port, a drug outlet port and a plurality of drug addition ends (each three-way valve 12 is correspondingly provided with a drug addition end), and a plurality of integrated three-way valves 12 The medicine inlet end is connected with the main pipe, the medicine outlet end is integrally connected with the second conduit 13, and the medicine addition end is connected with the three-way extension pipe. When it is necessary to add medicine to the patient during the operation, use the three-way extension tube to connect the three-way valve 12 and the medicine pot, connect one end of the three-way extension tube to the medicine-adding end of the three-way valve 12, and connect the other end to the medicine pot , and then use a professional pump to pump the drug into the integrated three-way infusion set at a specified speed. Designing multiple three-way valves 12 into an integrated structure reduces the number of times to connect the three-way valves 12 during major operations and reduces the workload of nurses; in addition, designing multiple three-way valves 12 into an integrated structure , can reduce the number of joints between the three-way valves 12, thereby reducing the probability of air entering the integrated three-way infusion set.

In the traditional infusion set, the infusion tube used to connect the various parts is relatively short, so it is necessary to connect the relatively short infusion tube through the connector during infusion, so that air will enter the infusion set and the infusion tube will increase during the operation. The probability of falling off at the connecting head; at the same time, it is necessary to fix the patient's upper limbs with wrapping cloth during the operation, and it is necessary to ensure that the upper limbs will not fall off. If the connecting head is wrapped in the wrapping cloth, it may make the patient's upper arm There are more indentations, and there is a risk of the patient developing a pressure sore. In order to avoid the generation of above-mentioned phenomenon, the transfusion tube in the connecting tube can be extended. In this embodiment, according to the needs of daily operations, preferably, the length of the connecting tube from the exhaust device 16 to the indwelling needle connector 17 is designed to be 45cm-120cm. According to the number of three-way valves 12 and the length of the connecting pipes, the connecting pipes can be divided into different specifications. Before the operation, the doctor determines the number of three-way valves 12 and the length of the connecting pipes needed according to the type of operation, and then selects the appropriate connecting pipes. It is connected with the main pipe, and the connecting pipe is connected with the main pipe through the three-way valve 12. The length of the connecting tube is designed to be the length required by the operation, and there is no need to connect the parts in the connecting tube, which reduces the probability of air entering the integrated three-way infusion set and the connecting tube falling off at the connecting head; The connecting head is wrapped in the cloth, which can reduce the indentation on the upper arm of the patient after operation, and reduce the occurrence of pressure sores in the patient.

In order to facilitate the firm connection between the main pipe and the connecting pipe, a main pipe screw joint 8 is provided at the end where the main pipe connects with the connecting pipe, and a valve screw joint matching the main pipe screw joint 8 is provided at the drug inlet end of the three-way valve 12 . According to the number of three-way valves 12 and the length of the connecting pipes, the connecting pipes can be divided into different specifications. Before the operation, the doctor determines the number of three-way valves 12 and the length of the connecting pipes needed according to the type of operation, and then selects the appropriate connecting pipes. Connect with the main pipe, the main pipe screw joint 8 and the valve screw joint connect the main pipe and the connecting pipe. If it is necessary to increase the three-way valve 12 during the operation, it is only necessary to rotate the main pipe screw joint 8 or the valve screw joint, disconnect the connection between the main pipe and the connecting pipe, connect one end of the three-way valve 12 to the main pipe screw joint 8, and the other One end is connected with the valve screw joint on the connecting pipe to realize the connection between the main pipe and the connecting pipe. Utilizing the main pipe screw joint 8 and the valve screw joint to realize the connection between the main pipe and the connecting pipe is not only convenient and firm, but also a three-way valve 12 can be conveniently added according to the needs of the operation during the operation.

During the operation, air may enter the first conduit 3 or the second conduit 13. In order to stop the flow of the medical solution entering the air, the main pipe is also provided with a main pipe clamp 7 for controlling the on-off state of the first conduit 3. , the main tube clamp 7 is located between the drug outlet end of the main tube tee 6 and the drug inlet end of the three-way valve 12 . During specific implementation, as shown in Figure 3, the main tube clamp 7 includes: a first hook 71, a first clamping plate 72, a first clamping opening 73 and a second clamping opening 74, and the first conduit 3 is located between the first clamping opening 73 and the second clamping opening 74. Between the jaws 74. When it is necessary to stop the flow of medicinal liquid, press the first splint 72 to drive the first clamp 73 to move toward the second clamp 74, and when the first clamp 72 is stuck in the first hook 71, the first clamp 73 Clamp the first catheter 3 with the second clamping mouth 74, and then make the liquid medicine stop flowing; Breaking away from the first hook 71 moves upward, and then drives the first clamp 73 to move upward, the first clamp 73 and the second clamp 74 loosen the first catheter 3, and the liquid medicine resumes flowing. Setting the main pipe clamp 7 on the first conduit 3 can conveniently control the on-off state of the first conduit 3 .

In order to make the use of the above-mentioned main pipe clamp 7 more convenient, preferably, anti-slip stripes or anti-slip protrusions are provided on the first clamping plate 72 to prevent relative sliding between the hand and the first clamping plate 72 when pressing the first clamping plate 72 , so that the use of the main pipe clamp 7 is more convenient.

In order to allow the doctor to conveniently and quickly find the parts that stop the flow of the medicinal fluid when it is necessary to stop the flow of the medicinal fluid, the connecting pipe is also provided with a connecting pipe clamp 15 for controlling the on-off state of the second conduit 13. The connecting pipe clamp 15 Located between the three-way valve 12 and the exhaust device 16 . The connecting pipe clamp 15 has the same structure as the main tube clamp 7, and the operation method is the same, which will not be repeated here. The on-off state of the second conduit 13 can be conveniently controlled by arranging the connecting pipe clamp 15 on the second conduit 13 .

In order to make the use of the above-mentioned connecting pipe clamp 15 more convenient, preferably, anti-slip stripes or anti-slip protrusions are provided on the second clamping plate to prevent relative sliding between the hand and the second clamping plate when the second clamping plate is pressed, so that the connection The pipe clamp 15 is more convenient to use.

During the operation, in addition to using the three-way valve 12 to continuously add medicine to the integrated three-way infusion set provided by the embodiment of the present utility model, it may also be necessary to add other medicines that require less (such as anesthetics). The medicine is added in the integrated three-way infusion set, and the connecting pipe is also provided with a connecting pipe three-way 14, and the connecting pipe three-way 14 is located between the three-way valve 12 and the exhaust device 16. The connecting pipe tee 14 is provided with a medicine inlet end, a medicine outlet end and a medicine adding end, and the medicine inlet end and the medicine outlet end of the connecting pipe tee 14 are connected with the second conduit 13, and the medicine adding end is provided with a valve to prevent air from entering. rubber stopper. When it is necessary to add medicine to the integrated three-way infusion set, a syringe is used to add medicine to the integrated three-way infusion set through the medicine-adding end of the connecting pipe three-way 14 . Setting the connecting pipe tee 14 on the connecting pipe makes it more convenient to add medicine during the operation; in addition, in a preferred embodiment, the connecting pipe tee 14 and the second conduit 13 are an integrated structure, so that the number of connecting pipes can be further reduced. The number of upper connectors reduces the probability of air entering the integrated three-way infusion set.

In order to enable the liquid medicine in the medicine bottle to continuously enter the first conduit 3, the integrated three-way infusion set provided by the embodiment of the utility model also includes an air inlet pipe 10, specifically, a cavity is provided in the bottle stopper piercer 2 , The air inlet pipe 10 communicates with the cavity of the cork piercer 2. During the infusion process, air enters the medicine bottle through the air inlet pipe 10 and the cavity of the cork piercer 2, and the air entering the medicine bottle generates pressure in the medicine bottle, so that the medicine liquid in the medicine bottle can continuously enter the first A catheter 3, and then into the body of the patient. Arranging the air inlet pipe 10 on the cork piercer 2 ensures that the infusion process can be carried out more smoothly.

In order to prevent macromolecular substances in the outside air that are harmful to the health of the patient from entering the liquid medicine, the air inlet of the air inlet pipe 10 is provided with a first filter membrane. During the infusion process, the first filter membrane filters out the macromolecular substances in the air, preventing the macromolecular substances from entering the liquid medicine and ensuring the health of the patient.

In order to prevent macromolecular substances and air in the liquid medicine from entering the patient's body, the exhaust device 16 is provided with a second filter membrane, and the second filter membrane is located between the drug inlet end and the drug outlet end of the exhaust device 16 . When the medicinal liquid passes through the second filter membrane, the macromolecular substances and air in the medicinal liquid are filtered out, and the filtered air is discharged through the exhaust hole on the exhaust device 16; in addition, in order to prevent the macromolecular substances in the outside air from Into the exhaust device 16 through the exhaust hole, preferably, a third filter membrane is arranged at the air outlet of the exhaust hole of the exhaust device 16, and the third filter membrane can filter out the macromolecular substances in the external air . Setting the second filter membrane in the exhaust device 16 can filter out macromolecular substances and air in the medicinal liquid, which plays a very good role in protecting the health of patients.

Before the integrated three-way infusion set provided by the embodiment of the utility model is used, harmful substances in the air may enter into the integrated three-way infusion set. In order to prevent the occurrence of the above phenomenon, preferably, as shown in Figure 1 and Figure 2 As shown, one end of the cork piercer 2 is provided with a cork piercer protective cap 1, one end of the screw joint 8 is provided with a screw joint protective cap 9, one end of the three-way valve 12 is provided with a three-way valve protective cap 11, and the indwelling needle One end of the connector 17 is provided with a connector protective cap 18 . When you need to use the integrated three-way infusion set, you only need to remove the stopper piercer protective cap 1, the screw joint protective cap 9, the three-way valve protective cap 11 and the connector protective cap 16 from the corresponding connectors. It is not only convenient to use, but also plays a very good role in protecting the sanitation in the integrated three-way infusion set.

During the infusion process, the indwelling needle needs to be fixed on the patient's arm with adhesive tape. The traditional infusion set and the adhesive tape are packaged separately. The nurse may forget to take the adhesive tape, so it is necessary to return to the infirmary to take the adhesive tape, which not only delays time , but also increase the workload of nurses. In order to avoid the occurrence of the above-mentioned phenomenon, the integrated three-way infusion set provided by the embodiment of the present invention is packaged together with the sticker. When infusion is given to patients, the integrated three-way infusion set and adhesive stickers can be directly used just by opening the package. The integrated three-way infusion set and the sticker are packaged together, which avoids the phenomenon that the nurse forgets to take the sticker, saves the time of the nurse and reduces the workload of the nurse.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present utility model, and are not intended to limit it; although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand : It can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements to some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions depart from the embodiments of the present utility model Scope of technical solutions.

Claims (10)

1. The integrated three-way infusion set is characterized in that, comprising: a main pipe and a connecting pipe, the main pipe includes a first pipe and a bottle stopper piercer connected by the first pipe, a drip pot, a flow rate regulator and a main pipe three The connecting pipe includes a second conduit and a three-way valve connected through the second conduit and an exhaust device, the connecting pipe is connected with one end of the main pipe through the three-way valve, and the bottle stopper is pierced The device is located at the other end of the main pipe, the three-way valve is located at one end of the connecting pipe, the exhaust device is located on the connecting pipe and is close to the medicine outlet of the three-way valve, the connecting pipe The other end is provided with an indwelling needle connector for connecting an indwelling needle, and the three-way valve, the exhaust device and the second conduit are of an integrated structure. 2. The integrated three-way infusion set according to claim 1, characterized in that there are multiple three-way valves, and the multiple three-way valves are of an integrated structure. 3. The integrated three-way infusion set according to claim 1, characterized in that, the length of the connecting pipe from the exhaust device to the connecting head is 45cm-120cm. 4. The integrated three-way infusion set according to claim 1, characterized in that, one end of the main pipe connected to the connecting pipe is provided with a main pipe screw joint, and the medicine inlet end of the three-way valve is provided with a Valve nipples that match the main pipe nipples described above. 5. The integrated three-way infusion set according to claim 1, characterized in that, the main pipe is also provided with a main pipe clamp for controlling the on-off state of the first conduit, and the main pipe clamp is located on the main pipe. between the medicine outlet end of the three-way valve and the medicine inlet end of the three-way valve. 6. The integrated three-way infusion set according to claim 1, characterized in that, the connecting pipe is also provided with a connecting pipe clamp for controlling the on-off state of the second conduit, and the connecting pipe clamp is located at Between the three-way valve and the exhaust device. 7. The integrated three-way infusion set according to claim 1, characterized in that, the connecting pipe is also provided with a connecting pipe three-way, and the connecting pipe three-way is located between the three-way valve and the exhaust valve. between devices. 8. The integrated three-way infusion set according to claim 1, further comprising an air inlet pipe, a cavity is provided in the bottle stopper piercer, and the space between the air inlet pipe and the bottle stopper piercer is The cavities are connected. 9. The integrated three-way infusion set according to claim 8, characterized in that, the air inlet of the air inlet pipe is provided with a first filter membrane. 10. The integrated three-way infusion set according to claim 1, characterized in that, a second filter membrane is arranged in the exhaust device, and the second filter membrane is located between the drug inlet end of the exhaust device and the between the drug outlets.